linux-kernel - [PATCH 09/52] SUNRPC: Fix up an error return value in gss_import_sec_context

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Date:	Thu, 14 Jan 2010 14:26:48 -0800
From:	Greg Kroah-Hartman <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org,
	stable-review@...nel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	Trond Myklebust <Trond.Myklebust@...app.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 09/52] SUNRPC: Fix up an error return value in gss_import_sec_context_kerberos()

From: Trond Myklebust <Trond.Myklebust@...app.com>

commit 14ace024b1e16d2bb9445c8387494fbbd820a738 upstream.

If the context allocation fails, the function currently returns a random
error code, since the variable 'p' still points to a valid memory location.

Ensure that it returns ENOMEM...

Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
---
 net/sunrpc/auth_gss/gss_krb5_mech.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index ef45eba..2deb0ed 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -131,8 +131,10 @@ gss_import_sec_context_kerberos(const void *p,
 	struct	krb5_ctx *ctx;
 	int tmp;
 
-	if (!(ctx = kzalloc(sizeof(*ctx), GFP_NOFS)))
+	if (!(ctx = kzalloc(sizeof(*ctx), GFP_NOFS))) {
+		p = ERR_PTR(-ENOMEM);
 		goto out_err;
+	}
 
 	p = simple_get_bytes(p, end, &ctx->initiate, sizeof(ctx->initiate));
 	if (IS_ERR(p))
-- 
1.6.6

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